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Captain Demo is a high-tech underwater pirate with a crew that uses deadly experimental weaponry. His fully functioning 16th Century pirate ship runs perfectly under the surface of the ocean, and he dresses accordingly. Deciding to conquer Atlantis, he rigged the entire city to explode unless its ruler Aquaman obeyed his every whim while he took over as dictator. Aquaman complied and was even forced to knock out his own wife Mera to protect the Captain, although he turned on him the second he found a working signal jammer for the detonator. Demo was immediately knocked out in a fist-fight while his occupying crew were defeated by Topo the Octopus, although the rest of his men rescued him and they escaped to fight another day.[1]

This character, team or organization, is or was primarily an enemy of Aquaman, or members of the Aquaman Family. This template will categorize articles that include it into the category "Aquaman Villains."